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Marquise|Natural|GIA

0.42ct H SI1 Marquise Natural Diamond

GD • H/SI1 • GIA 1535091145

Certificate GIA 1535091145

Diamond specifications and retailer prices

From £284 GBP
₹36,359 INR
As of November 2, 2026
Save £345 GBP (55%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £630 GBP at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 0.42ct natural marquise diamond

This 0.42ct natural marquise sits in the sub-half-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1535091145. Listed at 3 retailers as of November 2, 2026, with prices from £284 to £630, a £345 spread on the same certified stone. 77 Diamonds lists it at £630. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.42
Carat
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1535091145
Dimensions7.24 × 3.83 × 2.62 mm
L/W Ratio1.89
Top View
7.24 mm3.83 mm0.42 ctH / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1535091145
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £630 GBP|Low: £284 GBP|High: £637 GBP|Avg: £470 GBP|+1.4%
77 Diamonds
Retailer 2
Retailer 3
November 2, 2026
Retailer 2£284 GBP
Retailer 3£492 GBP
77 Diamonds£630 GBP

42 data points across 3 retailers

3 retailers£284 GBP to £630 GBP

B+
Cheapest Retailer
-
£284 GBP
₹36,359 INR
C
Retailer 2
-
£492 GBP
$660 USD
View
Most Expensive
C
77 Diamonds
MQCPQCVH4FUM · Nov 2
£630 GBP
View
2 more retailers have this diamond
Prices start from £284 GBPSave up to £345 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
0.42ct Marquise
£284 GBP